Question: Who is the father of Amitabh Bachchan?
Paraphrase: Amitabh Bachchan is the son of which man?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q9570 wdt:P22 ?obj . ?obj wdt:P31 wd:Q5 } 
Answer: Harivansh Rai Bachchan